Don't static_cast<>(this) to subclass in CXFA_LayoutItem methods.chromium/3508

Instead, move the methods to the subclass where they belong.
Fix IWYU in CJX_Object.h to fix compilation.

Change-Id: I4c71f28235b9cf5000e9ddaf33d6602baf22205f
Reviewed-on: https://pdfium-review.googlesource.com/39170
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>

1 files changed, 79 insertions, 0 deletions

diff --git a/xfa/fxfa/parser/cxfa_contentlayoutitem.cpp b/xfa/fxfa/parser/cxfa_contentlayoutitem.cpp
index 1ee364b9b7..e763e2d5da 100644
--- a/xfa/fxfa/parser/cxfa_contentlayoutitem.cpp
+++ b/xfa/fxfa/parser/cxfa_contentlayoutitem.cpp
@@ -7,6 +7,7 @@
 #include "xfa/fxfa/parser/cxfa_contentlayoutitem.h"
 
 #include "fxjs/xfa/cjx_object.h"
+#include "xfa/fxfa/parser/cxfa_margin.h"
 #include "xfa/fxfa/parser/cxfa_node.h"
 
 CXFA_ContentLayoutItem::CXFA_ContentLayoutItem(CXFA_Node* pNode)
@@ -19,3 +20,81 @@ CXFA_ContentLayoutItem::~CXFA_ContentLayoutItem() {
   if (m_pFormNode->JSObject()->GetLayoutItem() == this)
     m_pFormNode->JSObject()->SetLayoutItem(nullptr);
 }
+
+CXFA_ContentLayoutItem* CXFA_ContentLayoutItem::GetFirst() {
+  CXFA_ContentLayoutItem* pCurNode = this;
+  while (pCurNode->m_pPrev)
+    pCurNode = pCurNode->m_pPrev;
+
+  return pCurNode;
+}
+
+CXFA_ContentLayoutItem* CXFA_ContentLayoutItem::GetLast() {
+  CXFA_ContentLayoutItem* pCurNode = this;
+  while (pCurNode->m_pNext)
+    pCurNode = pCurNode->m_pNext;
+
+  return pCurNode;
+}
+
+CFX_RectF CXFA_ContentLayoutItem::GetRect(bool bRelative) const {
+  CFX_PointF sPos = m_sPos;
+  CFX_SizeF sSize = m_sSize;
+  if (bRelative)
+    return CFX_RectF(sPos, sSize);
+
+  for (CXFA_LayoutItem* pLayoutItem = m_pParent; pLayoutItem;
+       pLayoutItem = pLayoutItem->m_pParent) {
+    if (CXFA_ContentLayoutItem* pContent = pLayoutItem->AsContentLayoutItem()) {
+      sPos += pContent->m_sPos;
+      CXFA_Margin* pMarginNode =
+          pContent->m_pFormNode->GetFirstChildByClass<CXFA_Margin>(
+              XFA_Element::Margin);
+      if (pMarginNode) {
+        sPos += CFX_PointF(pMarginNode->JSObject()
+                               ->GetMeasure(XFA_Attribute::LeftInset)
+                               .ToUnit(XFA_Unit::Pt),
+                           pMarginNode->JSObject()
+                               ->GetMeasure(XFA_Attribute::TopInset)
+                               .ToUnit(XFA_Unit::Pt));
+      }
+      continue;
+    }
+
+    if (pLayoutItem->GetFormNode()->GetElementType() ==
+        XFA_Element::ContentArea) {
+      sPos += CFX_PointF(pLayoutItem->GetFormNode()
+                             ->JSObject()
+                             ->GetMeasure(XFA_Attribute::X)
+                             .ToUnit(XFA_Unit::Pt),
+                         pLayoutItem->GetFormNode()
+                             ->JSObject()
+                             ->GetMeasure(XFA_Attribute::Y)
+                             .ToUnit(XFA_Unit::Pt));
+      break;
+    }
+    if (pLayoutItem->GetFormNode()->GetElementType() == XFA_Element::PageArea)
+      break;
+  }
+  return CFX_RectF(sPos, sSize);
+}
+
+int32_t CXFA_ContentLayoutItem::GetIndex() const {
+  int32_t iIndex = 0;
+  const CXFA_ContentLayoutItem* pCurNode = this;
+  while (pCurNode->m_pPrev) {
+    pCurNode = pCurNode->m_pPrev;
+    ++iIndex;
+  }
+  return iIndex;
+}
+
+int32_t CXFA_ContentLayoutItem::GetCount() const {
+  int32_t iCount = GetIndex() + 1;
+  const CXFA_ContentLayoutItem* pCurNode = this;
+  while (pCurNode->m_pNext) {
+    pCurNode = pCurNode->m_pNext;
+    iCount++;
+  }
+  return iCount;
+}